Heres that part from the song that starts at about 3 seconds... I just snapped a screenshot of it in guitarpro. Use you the index finger on your fret hand to mute the strings to reduce excess noise. Use the rest your fretting hand fingers to hammeron all the notes. For the Notes on the High E string use your pinky on your fretting hand and ring on your tapping. For G use both your middle fingers. For D use your pinky to hammeron and index for tapping. And for A use ring finger on fret hand and Index for tapping
